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Note 8 - Leases (Detail) (USD $)	12 Months Ended								192 Months Ended	252 Months Ended
Note 8 - Leases (Detail) (USD $)	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2033	Jun. 30, 2033
Operating Leases, Rent Expense, Sublease Rentals	$ 900,000	$ 900,000	$ 1,700,000	$ 1,900,000	$ 2,200,000	$ 1,656,000	$ 1,621,000	$ 957,000	$ 1,700,000	$ 9,300,000
Deferred Rent Credit						11,600,000	11,900,000
Lease Incentive Receivable						$ 2,300,000	$ 2,700,000

The cumulative difference between the rental payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense over the term of the leased property by the lessor or lessee, respectively.

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